Littleton, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Littleton, a city in Arapahoe County, Colorado.
Tonight
53°F
Partly Cloudy
Partly cloudy, with a low around 53. West southwest wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Littleton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Partly Cloudy | 5 mph WSW | 8% |
| Saturday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph E | 62% |
| Saturday Night | 51°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph WNW | 46% |
| Sunday | 72°F | Showers And Thunderstorms Likely | 2 to 8 mph ENE | 57% |
| Sunday Night | 49°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 7 mph SE | 31% |
| Monday | 74°F | Sunny | 1 to 7 mph SE | 3% |
| Monday Night | 50°F | Mostly Clear | 2 to 7 mph S | 13% |
| Tuesday | 77°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph E | 19% |
| Tuesday Night | 52°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph S | 21% |
| Wednesday | 77°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph ESE | 18% |
| Wednesday Night | 52°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 6 mph SSW | 18% |
| Thursday | 78°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph NNW | 17% |
| Thursday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 6 mph SSW | 27% |
| Friday | 80°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SSE | 17% |
Forecast source: National Weather Service (api.weather.gov) for Littleton (39.590, -105.020). Updated through the day.
Growing snapshot for Littleton
Last spring frost
May 2
First fall frost
Oct 11
Growing season
160 days
Hardiness zone
6a
More local growing data for Littleton: nearby ZIP 80120 weather · frost dates · planting calendar · Colorado frost dates
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Inverness
Meridian
Meridian Village
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Watkins
Climate data from the nearest NOAA station, Marston Fltr Plt, Co (3.4 mi from Littleton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.